I often submit works involving Red Robot, which is my main OC. As you can probably guess, his series is far from your usual "average girl gains weight type of story".
His adventures are action based, but they include a lot of "fanservice" with SSBBWs. If you like reading thrillers and fantasy books then Red stories may be for you. However, the Red Robot series isn't erotica.
Sometimes I'll write something that is purely fap fiction, but I usually dislike erotica without a plot (and on DA, this is the most popular form of it). You should expect my "erotica" to have an actual story most of the time.
The same as with Erotica, once in a while I'll write fanfiction that could be considered fap material for Fat Fetishists. However, I do like submitting fanfiction with some sort of dark plot on occasion. But this doesn't mean I won't write something happy and cutesy from time to time.